Materials :
- 30 inch tube of cardboard
- Giant Crayola piggy bank
- Red, blue and gray spray paint
- 2 plastic shopping bags
- 12 inches of bungie cord
- Hot glue gun
- Nickel roller
- Paper clip
- Chunk of styrofoam
- Sheet of wood
- Piece of paper
- Chunk of wood
- Piece of straw
- Baby powder
- Fleecy sheet
- Engines (B and C)
- Scotch tape